JP4760533B2 - Airbag device - Google Patents

Airbag device Download PDF

Info

Publication number
JP4760533B2
JP4760533B2 JP2006146894A JP2006146894A JP4760533B2 JP 4760533 B2 JP4760533 B2 JP 4760533B2 JP 2006146894 A JP2006146894 A JP 2006146894A JP 2006146894 A JP2006146894 A JP 2006146894A JP 4760533 B2 JP4760533 B2 JP 4760533B2
Authority
JP
Japan
Prior art keywords
portion
side
vehicle
airbag
inflating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2006146894A
Other languages
Japanese (ja)
Other versions
JP2007314075A (en
JP2007314075A5 (en
Inventor
道夫 井上
Original Assignee
豊田合成株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 豊田合成株式会社 filed Critical 豊田合成株式会社
Priority to JP2006146894A priority Critical patent/JP4760533B2/en
Publication of JP2007314075A5 publication Critical patent/JP2007314075A5/ja
Publication of JP2007314075A publication Critical patent/JP2007314075A/en
Application granted granted Critical
Publication of JP4760533B2 publication Critical patent/JP4760533B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats

Description

  The present invention relates to an airbag device provided to alleviate an impact from a side of a vehicle.

  2. Description of the Related Art An airbag device is known as a device that protects an occupant and the like from a side impact such as a side collision when the vehicle is subjected to a side impact (see Patent Documents 1 to 3). The airbag module of the apparatus is incorporated in a side portion on the vehicle outer side, for example, with respect to a seat back (backrest) of a vehicle seat. The airbag module includes an inflator that generates gas in response to an impact from the side of the vehicle, and an airbag that is inflated and deployed by the gas from the inflator.

In the airbag apparatus, when an impact is applied to the body side portion of the vehicle from the side, gas is injected and supplied from the inflator into the airbag, and the airbag is inflated and deployed forward from the seat back. This inflated and deployed airbag is interposed between the occupant and the body side portion that enters the vehicle interior, and the side impact transmitted to the occupant through the body side portion is reduced.
Japanese Patent Laid-Open No. 10-24793 Japanese Patent Laid-Open No. 10-80590 JP-A-10-81187

  By the way, in the airbag device, if the occupant can be pushed in the direction away from the body side portion and moved to the vehicle inner side before entering the vehicle interior of the body side portion, the occupant protection performance can be further improved. It is considered possible. In this regard, in the conventional airbag device described above, the occupant can be pushed by the inflated and deployed airbag, but the timing to push the occupant is after the inflated airbag has popped out of the seat back and deployed to some extent. Therefore, these airbag devices have room for improvement in improving the above-described occupant protection performance.

  The present invention has been made in view of such a situation, and an object of the present invention is to provide an airbag device capable of further improving the protection performance of an occupant against an impact from the side of a vehicle.

In order to achieve the above object, the invention according to claim 1 is a gas generation source that generates gas in response to an impact from a side of a vehicle, and an airbag that is inflated and deployed by the gas from the gas generation source. An airbag device comprising: a side plate portion extending in the front-rear direction and a front plate portion extending from the front end of the same side plate portion to the vehicle outer side. A bracket provided with a plate portion is disposed in a side portion of the seat back outside the vehicle, and the first inflating and deploying portion forming a part of the airbag is not folded in the vehicle of the side plate portion. The second inflating and deploying portion that is disposed in the vicinity of the inside and that forms a part of the airbag is disposed in the vicinity of the front of the front plate portion in a folded state, And base of the port portion, between the air bag module within the seat back, the hard material as a reinforcing member is not provided for regulating the inflation and deployment direction of the airbag, the side plate portion, By functioning as a first pressure receiving portion that receives a gas pressure through the first inflating and expanding portion that expands and generates a reaction force toward the inside of the obliquely forward vehicle, the first inflating and deploying portion is directed toward the inside of the obliquely forward vehicle. As a second pressure receiving portion that inflates and expands and presses the base portion diagonally forward toward the inside of the vehicle, the front plate portion receives gas pressure through the second inflating and expanding portion to expand and generates a reaction force toward the front. The gist is that the second inflating and deploying portion is inflated and deployed toward the front of the vehicle by functioning.

According to the above configuration, when the gas is generated from the gas generation source in response to the impact from the side of the vehicle , the first inflating / deploying portion of the airbag starts to expand due to the gas. At this time, the side plate portion of the bracket functions as a first pressure receiving portion, and the pressure of the gas is received by the side plate portion through the expanding and expanding first expanding portion, and a reaction force is generated toward the diagonally forward vehicle interior. This reaction force, the first inflation expansion portion is expanded deployed toward the obliquely forward vehicle interior, base portion of the side support portion of the exterior of the sheet Tobakku is pressed to the swash Me preceding vehicle interior. By this pressing, the vicinity of the base portion in the side support portion swells. By this swelled side support portion, the occupant seated on the vehicle seat is pushed and moved to the inside of the vehicle.

Further, the second inflating and deploying portion of the airbag starts to inflate and deploy by the gas from the gas generation source. At this time, the front plate portion of the bracket functions as a second pressure receiving portion, and the gas pressure is received by the front plate portion through the expanding and expanding second expanding portion, and a reaction force directed forward is generated. By this reaction force, the second inflating and deploying portion is inflated and deployed forward as in the airbag in the conventional side airbag device.
Thereafter, as the airbag is inflated, the side support portion is broken, and the airbag pops out from the seat back through the broken portion. After that, the airbag is inflated and deployed , interposed between the occupant and the body side part entering the vehicle interior, pressing the occupant directly to the inside of the vehicle , and the impact from the side transmitted to the occupant through the body side part To ease .

  Thus, according to the first aspect of the present invention, the occupant can be pushed toward the inside of the vehicle from the initial stage of inflation when the airbag is inflated in the seat back. The occupant can be moved to the inside of the vehicle at an earlier time than when the inflated airbag jumps out of the seat back and then directly presses the occupant, further improving the occupant's protection performance against the impact from the side of the vehicle Is possible.

Here, if a hard object exists between the airbag module in the seat back and the base portion of the side support part, the inflation and deployment of the airbag is hindered by the hard object. At the initial stage of inflation of the airbag, the base portion of the side support portion is not easily pushed diagonally forward toward the inside of the vehicle. However, in the invention described in claim 1 , such a hard object is not provided between the airbag module and the base portion. Therefore, from the initial stage of inflation and deployment of the airbag, it is possible to press the base portion of the side support portion obliquely forward vehicle interior, effects described above can be surely obtained.

Further, when the airbag is folded, the folded portion serves as a resistance to inflation and deployment. In this regard, in the first aspect of the present invention, the first inflated / deployed portion is not folded. For this reason, there are fewer elements that are inflated and deployed than in the case of being folded, the first inflated and deployed part can be inflated and deployed faster, and the occupant can be pushed toward the inside of the vehicle from an earlier time.

Moreover, according to said structure, a 2nd expansion | deployment expansion | deployment part becomes compact by folding. Therefore, even if it is the limited space in the side part of the vehicle outer side of the side support part, the second inflating / deploying part can be reliably incorporated.

  According to the airbag device of the present invention, it is possible to further improve the occupant protection performance against an impact from the side of the vehicle.

Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
FIG. 1 shows a seat back (backrest portion) 12 of a vehicle seat (seat) 11 to which the airbag apparatus of the present embodiment is applied. Moreover, FIG. 2 has shown the positional relationship of the seat back 12 and the body side part 13 in a vehicle. As shown in at least one of these FIGS. 1 and 2, the vehicle seat 11 (seat back 12) is disposed in the vicinity of the vehicle interior side of the body side portion 13 such as a vehicle door.

  1 and 2, the side indicated by the arrow A indicates the vehicle outer side, and the side indicated by the arrow B indicates the vehicle inner side. Accordingly, the direction indicated by arrows A and B is the vehicle width direction. 1 and 2, the direction indicated by the arrow C indicates the front of the vehicle in the traveling direction (hereinafter simply referred to as “front”). The same applies to other figures.

  The seat back 12 has side support portions 14 and 15 on the front portion thereof and on both sides in the vehicle width direction. Both side support parts 14 and 15 are for supporting the occupant P so as to regulate the movement of the occupant P seated on the vehicle seat 11 and leaning against the seat back 12 in the vehicle width direction. Here, in the seat back 12, assuming that a portion excluding both side portions on the vehicle inner side and the vehicle outer side is the intermediate portion 10, the both side support portions 14 and 15 protrude forward from the front surface of the intermediate portion 10.

Next, in the seat back 12, the internal structure of the side portion 16 outside the vehicle including the side support portion 15 will be described.
As shown in FIG. 3, in the seat back 12, a seat frame is a skeleton, and a seat pad 21 made of an elastic material such as urethane foam is provided around the seat frame. A part of the seat frame is disposed in the side part 16 of the seat back 12, and this part (hereinafter referred to as "side frame part 22") is formed by bending a metal plate in this embodiment. Yes. The side frame portion 22 includes a side wall portion 23 (see FIG. 4) that extends in the front-rear direction, and a rear wall portion 24 that is bent inward from the rear end of the side wall portion 23.

  The seat pad 21 is covered with a plurality of skins 25 to 27. The skins 26 and 27 are overlapped and stitched at the front side of the side support portion 15. The stitched portion 28 is accommodated in a groove 29 provided in the seat pad 21. Since the stitched portion 28 is lower in strength than the non-stitched portions of the two epidermis 26 and 27, it constitutes a part of a planned fracture portion that is broken by an airbag 44 described later.

  Further, as shown in FIG. 5, in the skins 25 and 26, portions corresponding to the boundary portion 17 between the intermediate portion 10 and the side support portion 15 are folded back and stitched. The stitched portion 30 is accommodated in a groove portion 31 provided in the front portion of the seat pad 21 in a state of being pulled rearward. In order to keep the stitched portion 30 pulled backward, the following configuration is employed. A wire attaching portion 32 made of cloth or the like is sewn to the stitched portion 30, and a hanging wire 33 extending in the vertical direction is inserted into the wire attaching portion 32. An insert wire 34 extending in the vertical direction is embedded in the seat pad 21 in the vicinity of the rear of the groove 31. And these suspending wire 33 and insert wire 34 are connected by caulking ring 35 in a plurality of places about the up-and-down direction. The material of the ring 35 is typically a metal. FIG. 5 shows the ring 35 in a state before caulking.

  As shown in FIG. 3, in the vicinity of the side frame portion 22 of the seat pad 21, an accommodation space for incorporating the airbag module 18 that forms the main part of the airbag device is provided. The housing space has a side housing space 36 provided in the vicinity of the vehicle inner side than the side frame portion 22 and a front housing space 37 provided in the vicinity of the front side of the side frame portion 22. The front housing space 37 is formed continuously on the front side of the side housing space 36.

  Here, the front housing space 37, the airbag 44 housed therein, and the like can be a factor that impairs the sitting comfort of the vehicle seat 11 (seat comfort of the seat back 12). This is because the elasticity is lower than when the seat pad 21 is provided. Therefore, the size of the front accommodating space 37 is limited to a size that does not significantly impair the riding comfort. Note that the side housing space 36 has almost no restriction on the size.

  A slit 38 extends from the corner on the vehicle exterior side of the front housing space 37 toward the stitched portion 28 of the skins 26 and 27. In the seat pad 21, a portion between the slit 38 and the stitched portion 28 is thin, and together with the stitched portion 28 constitutes the above-described fracture portion.

  As shown in at least one of FIGS. 3 and 4, a bracket 39 is attached to the side frame portion 22. The bracket 39 includes a side plate portion 41 that extends in the front-rear direction at a predetermined distance from the side wall portion 23 of the side frame portion 22 toward the vehicle inner side, and a front plate portion 42 that extends from the front end of the side plate portion 41 to the vehicle outer side. These side plate part 41 and front plate part 42 are both formed of a highly rigid plate material such as a metal plate. The bracket 39 is fixed to the front end portion of the side wall portion 23 of the side frame portion 22 in the front plate portion 42 by fastening parts (not shown) or the like. The bracket 39 may be integrally formed with the side frame portion 22. Further, the side frame portion 22 itself may constitute the bracket 39.

  The airbag module 18 includes an inflator 43 serving as a gas generation source, and an airbag 44 mounted so as to cover the inflator 43. A gas generating agent (not shown) is accommodated in the inflator 43. In this type of inflator 43, gas is generated by the combustion reaction of the gas generating agent. Instead of this type, an inflator of a type that breaks a partition wall of a high-pressure gas cylinder filled with a high-pressure gas using an explosive or the like and ejects gas may be used. The inflator 43 is disposed in the vicinity of the inner side of the side plate portion 41 of the bracket 39 and is fixed to the rear end portion of the side plate portion 41 by fastening parts such as bolts 45 and nuts 46.

  The airbag 44 is formed in a bag shape, for example, by sewing a pair of base fabrics at the periphery. The air bag 44 is functionally configured to include a first inflating and deploying portion 47 that inflates and deploys obliquely toward the inside of the front vehicle, and a second inflating and deploying portion 48 that inflates and deploys toward the front. The first inflating and deploying portion 47 is disposed in the side portion accommodating space 36 in a state where it is not folded in front of the inflator 43 and in the vicinity of the vehicle interior side of the side plate portion 41. The second inflating / deploying portion 48 is disposed in the front housing space 37 in a state of being folded in front of the first inflating / deploying portion 47 and in the vicinity of the front of the front plate portion 42.

The inflator 43, the airbag 44, and the like described above are not accommodated in a case of synthetic resin or the like, and are wrapped by a flexible bag (not shown).
In this way, the airbag module 18 is incorporated in the side portion 16 on the vehicle outer side with respect to the seat back 12. The reason why the airbag module 18 is incorporated in this manner is to press the base portion 19 of the side support portion 15 on the vehicle outer side in the seat back 12 obliquely forward toward the vehicle interior when the airbag 44 is inflated and deployed. As shown by a two-dot chain line in FIG. 3, the base portion 19 here is a portion that is pressed by the airbag 44 with respect to the side support portion 15 on the vehicle outer side, and is a portion between the airbag module 18 and the occupant P. It is. More specifically, the base portion 19 is a portion sandwiched between the boundary portion 17 and the second inflating and deploying portion 48 in the side support portion 15 in the vehicle width direction. Further, the base portion 19 is a portion on the front side of the front surface of the intermediate portion 10 in the side support portion 15 in the front-rear direction.

  Between the airbag module 18 in the seat back 12 and at least the base portion 19, there is no hard object that prevents the airbag 44 from being inflated and deployed. As a hard thing, the reinforcing member etc. which regulate the inflation deployment direction of air bag 44, etc. are mentioned, for example. In a general side airbag device, a rigid reinforcing member for guiding the airbag in the same direction is provided in order to inflate and deploy the airbag accommodated in the side portion of the seat back to the outside of the obliquely forward vehicle. In this embodiment, such a reinforcing member is not provided. In addition, the seat pad 21 and the bag body that wraps the airbag module 18 described above are easily deformed and do not correspond to this hard material.

  The region where such a hard object is not provided is preferably wide from the viewpoint of not hindering the inflation and deployment of the airbag 44, and the region sandwiched between the boundary portion 17 and the stitched portion 28 is the widest region that can be taken (maximum Area). In this maximum region, a portion on the vehicle outer side than the second inflating and deploying portion 48 is a region where a hard object that hinders inflating and deploying the air bag is also not provided in a general side airbag device. Therefore, the maximum area is wider than that of a general side airbag device. Further, the portion (base portion 19) of the side support portion 15 that is pressed diagonally forward toward the vehicle interior when the airbag 44 is inflated and deployed is included in the maximum region where no hard object is provided. In addition, the base portion 19 is located on the inner side of the vehicle with respect to the region where no hard object is provided in a general side airbag device, and the seat pad 21 is pressed at this portion in the initial stage of inflation and deployment of the airbag 44. Is done.

  The airbag device includes an impact sensor and a control device (not shown) in addition to the airbag module 18 described above. The impact sensor is composed of an acceleration sensor or the like, and is provided on the body side portion 13 (see FIG. 2) of the vehicle. The impact sensor detects an impact applied from the side to the body side portion 13. The control device operates the inflator 43 when the impact detected by the impact sensor is greater than or equal to a predetermined value. A high-pressure gas is jetted and supplied from the inflator 43 into the airbag 44, and the airbag 44 is inflated and deployed by the pressure of the gas.

  Furthermore, between the skins 26 and 27 and the seat pad 21, there is little elongation in the portions corresponding to the side frame portion 22, the bracket 39, and the airbag module 18 in order to improve the deployability of the airbag 44. Two webbings 51 and 52 each formed in a strip shape are wound around the material. One end of each force cloth 51, 52 is sewn together with the skins 26, 27 at the stitched portion 28. Further, the other end of each of the webbings 51 and 52 is locked to the rear wall portion 24 of the side frame portion 22. Both the force cloths 51 and 52 are in an expanded state in the initial stage of inflation and deployment of the airbag 44, thereby suppressing the inflation of the airbag 44 in a direction different from a predetermined deployment direction. Moreover, both the force cloths 51 and 52 suppress the deformation | transformation of the seat pad 21 and the elongation of the skins 26 and 27, and use it as a trigger of the fracture | rupture of a planned fracture | rupture part.

  The airbag device of the present embodiment is configured as described above. In this airbag apparatus, when a high-pressure gas is ejected from the inflator 43 in response to an impact from the side of the vehicle in the state shown in FIG. 3, first, the first inflating and deploying portion 47 of the airbag 44 is caused by the gas. Start to swell. At this time, the side plate portion 41 of the bracket 39 having high rigidity functions as a first pressure receiving portion, receives the pressure of the gas toward the diagonally rear vehicle exterior, and generates a reaction force F1 toward the diagonally forward vehicle interior. Due to this reaction force F1, the first inflating and deploying portion 47 inflates and unfolds reliably and quickly toward the inside of the diagonally forward vehicle, and comes into contact with the inner surface 21A of the seat pad 21 in the side portion accommodating space 36 and the like. As the inflation proceeds, the first inflating and deploying portion 47 presses the seat pad 21 diagonally forward toward the inside of the vehicle.

  By this pressing, as shown in FIG. 6, the root portion 19 of the side support portion 15 starts to swell diagonally forward toward the inside of the vehicle. The swelled side support portion 15 pushes the occupant P seated on the vehicle seat 11 and leaning against the seat back 12 to move toward the inside of the vehicle. This moving direction is a direction away from the body side portion 13 of the vehicle.

  Here, if a hard object exists between the airbag module 18 and the base portion 19 in the seat back 12, the inflation and deployment of the airbag 44 is hindered by the hard object. At the initial stage of inflation of the airbag 44, the root portion 19 is not easily pushed diagonally forward toward the inside of the vehicle, and the root portion 19 is inflated in the same direction, and the effect of pushing the occupant P toward the inside of the vehicle is less likely to be obtained. However, in the present embodiment, such a hard object is not provided between the airbag module 18 and the base portion 19. Therefore, from the initial stage of the inflation and deployment of the airbag 44, the base portion 19 of the side support portion 15 is reliably pressed diagonally forward toward the vehicle interior.

  Further, if the first inflating and unfolding portion 47 is folded, the folded portion becomes a resistance to inflating and unfolding. In this regard, in the present embodiment, the first inflating / deploying portion 47 is not folded. For this reason, there are few elements which become the expansion | swelling expansion | deployment resistance compared with the case where it is folded, and the 1st expansion | deployment expansion part 47 is expand | deployed rapidly.

  In the airbag 44, in addition to the first inflating and deploying portion 47, the second inflating and deploying portion 48 also starts to inflate due to the high-pressure gas ejected from the inflator 43. The pressure of the gas is applied to the front plate portion 42 of the bracket 39 through the second expansion / deployment portion 48. At this time, the highly rigid front plate portion 42 functions as a second pressure receiving portion, receives the pressure of the gas going backward, and generates a reaction force F2 going forward. Due to this reaction force F2, the second inflating and deploying portion 48 inflates and unfolds reliably and quickly forward, and comes into contact with the inner surface 21B of the seat pad 21 in the front accommodating space 37. As the expansion proceeds, the second inflating / deploying portion 48 presses the seat pad 21 forward, and a part of the second inflating / deploying portion 48 enters the slit 38. The second inflating and deploying portion 48 tends to continue to inflate and deploy even after the slit 38 is filled.

  Therefore, as the airbag 44 (the first inflating and deploying portion 47 and the second inflating and deploying portion 48) is inflated, the side support portion 15 is broken at the planned breaking portion as shown in FIG. That is, the thin portion of the seat pad 21 between the slit 38 and the stitched portion 28 is broken, and the stitched state in the stitched portion 28 is released to form an opening 49. The first inflating and deploying portion 47 and the second inflating and deploying portion 48 jump out of the seat back 12 through the opening 49 while enlarging the opening 49 caused by the breakage. At this time, a portion of the side support portion 15 on the vehicle inner side than the opening 49 opens forward with the stitched portion 30 as a fulcrum. Further, a portion of the side support portion 15 behind the opening 49 opens rearward with a notch 50 provided on the side portion of the seat pad 21 as a fulcrum.

  Thereafter, the first inflating and deploying portion 47 continues to inflate and deploy, and presses the occupant P directly toward the inside of the vehicle as indicated by an arrow D in FIG. In addition, the dashed-two dotted line in FIG. 8 has shown the position of the passenger | crew P before the airbag apparatus act | operates.

  As described above, according to the present embodiment, the occupant P is pushed to the inside of the vehicle from the initial stage of inflation in which the airbag 44 is inflated in the seat back 12. The occupant P is moved to the vehicle interior from a time earlier than when the occupant P is directly pressed after the inflated airbag 44 jumps out of the seat back 12.

  In addition, the second inflating / deploying portion 48 that has jumped out of the opening 49 caused by the breaking of the stitched portion 28 and the like is inflated and deployed forward from the seat back 12. The inflated airbag 44 is interposed between the occupant P, in particular, a wide area from the shoulder to the waist and the body side portion 13 entering the vehicle interior as indicated by an arrow E in FIG. The side impact transmitted to the occupant P through the body side portion 13 is mitigated. At this time, as described above, since the occupant P is pushed in advance by the side support portion 15 and moved toward the inside of the vehicle, the impact transmitted from the body side portion 13 to the occupant P is reduced.

According to the embodiment described in detail above, the following effects can be obtained.
(1) The airbag module 18 is incorporated in the seat back 12 so that the base portion 19 of the side support portion 15 on the vehicle outer side in the seat back 12 is pressed diagonally forward toward the vehicle interior when the airbag 44 is inflated and deployed. . For this reason, it is possible to push the occupant P toward the inside of the vehicle from the initial stage of inflation when the airbag 44 is inflated in the seat back 12. The occupant P can be moved to the inside of the vehicle from a time earlier than when the occupant P is directly pushed after the inflated airbag 44 jumps out of the seat back 12, and the occupant P has a protection performance against impact from the side of the vehicle Further improvement can be achieved.

  (2) In the initial stage of inflation of the airbag 44, the occupant P is pushed toward the vehicle interior via the seat back 12 (seat pad 21) made of an elastic material as in (1) above. Therefore, the occupant P can be pushed more softly than by the airbag 44 itself.

  (3) No hard object is provided between the airbag module 18 in the seat back 12 and the base portion 19 of the side support portion 15 so as to prevent the airbag 44 from being inflated and deployed. Therefore, from the initial stage of inflation and deployment of the airbag 44, it becomes possible to press the root portion 19 diagonally forward toward the inside of the vehicle, and the effect described in (1) can be obtained with certainty.

  (4) The airbag 44 is provided with a first inflating and deploying portion 47 that inflates and deploys obliquely forward toward the inside of the vehicle, and a second inflating and deploying portion 48 that inflates and deploys toward the front. For this reason, the effect described in the above (1) can be obtained by the expansion and deployment of the first expansion and deployment part 47. In addition, the side impact transmitted to the occupant P through the body side portion 13 can be reduced by the inflating and deploying of the second inflating and deploying portion 48. At this time, the occupant has already been moved to the inside of the vehicle by the expansion and deployment of the first inflating and deploying portion 47. Therefore, the impact from the side with respect to the vehicle can be more effectively mitigated by the expansion and expansion of both the expansion and expansion portions 47 and 48.

  (5) A side plate portion 41 of the bracket 39 is provided in the seat back 12 and in the vicinity of the vehicle exterior side of the first inflating and deploying portion 47 so as to function as a first pressure receiving portion. Therefore, the side plate portion 41 can receive a gas pressure through the first inflating / deploying portion 47 that is inflated, and the reaction force F <b> 1 toward the diagonally forward vehicle inside can be applied to the first inflating / deploying portion 47. Accordingly, as compared with the case where the first pressure receiving portion is not provided, the first inflating and deploying portion 47 is surely inflated and deployed to the inside of the obliquely forward vehicle, and the base portion 19 of the side support portion 15 is obliquely directed to the inside of the obliquely forward vehicle. Can be pressed.

  (6) The first inflating and deploying portion 47 is incorporated in the seat back 12 without being folded. For this reason, the number of elements that are inflated and deployed is less than when folded, the first inflating and deploying portion 47 can be inflated and deployed faster, and the occupant P can be pressed toward the vehicle interior from an earlier time.

  (7) A front plate portion 42 of the bracket 39 is provided in the seat back 12 and in the vicinity of the rear of the second inflating and deploying portion 48 so as to function as a second pressure receiving portion. Therefore, the front plate portion 42 can receive a gas pressure through the second expansion / deployment portion 48 that expands, and can apply a reaction force F2 directed forward to the second expansion / deployment portion 48. Therefore, as compared with the case where such a second pressure receiving portion is not provided, the second inflating / deploying portion 48 can be surely inflated and deployed forward and reliably.

  (8) From the viewpoint of securing the riding comfort of the vehicle seat 11, it is difficult to provide a large front housing space 37 in front of the side frame portion 22. In this regard, in the present embodiment, the second inflating / deploying portion 48 is folded to be compact. Therefore, the second inflating / deploying portion 48 can be reliably incorporated even if the front accommodating space 37 is not large as described above.

Note that the present invention can be embodied in another embodiment described below.
-The airbag apparatus of this invention is applicable also to the vehicle seat in which the side frame part 22 which has a shape different from the said embodiment was used. 9-11 has shown the one aspect | mode.

  9 and 10, a front wall portion 53 that extends from the front end of the side wall portion 23 toward the vehicle interior side is provided. In this case, the bracket 39 having the same configuration as that of the above embodiment is attached to the side frame portion 22, the inflator 43 and the first inflating / deploying portion 47 are disposed in the vicinity of the vehicle interior side of the side plate portion 41, and the second inflating / deploying portion 48. May be disposed near the front of the front plate portion 42.

  In FIG. 10, the side frame part 22 having a longer front and rear length of the side wall part 23 than that of FIG. 9 is used. Accordingly, in FIG. 9, the inflator 43 is disposed behind the rear wall portion 24 of the side frame portion 22, whereas the inflator 43 is disposed forward of the rear wall portion 24 in FIG. 10. .

  In FIG. 11, the side frame portion 22 has a circular tubular shape. In this case, the inflator 43 and the airbag 44 may be attached to the side frame portion 22 via the bracket 39. The bracket 39 includes a side plate portion 54 extending in the front-rear direction, a rear plate portion 55 extending from the rear end of the side plate portion 54 to the vehicle inner side, and a front plate portion 56 extending from the front end of the side plate portion 54 to the vehicle outer side. The bracket 39 is then fixed to the side frame portion 22 at the plate portion 55. Further, the inflator 43 and the first inflating and deploying portion 47 may be disposed in the vicinity of the vehicle interior side of the side plate portion 54, and the second inflating and deploying portion 48 may be disposed in the vicinity of the front of the front plate portion 56.

As shown in FIG. 12, the airbag module 18 may be directly attached to the side frame portion 22.
In the case where the side frame portion 22 includes the side wall portion 23 and the rear wall portion 24 as in the above-described embodiment, the side wall portion 23 having high rigidity is positioned in the vicinity of the vehicle exterior side of the first inflating and deploying portion 47. Therefore, it functions as a first pressure receiving portion. By exhibiting this function, the side wall portion 23 receives a gas pressure through the first inflating and expanding portion 47 that is inflated, and generates a reaction force obliquely toward the inside of the front vehicle.

  Further, since the front end portion of the side wall portion 23 having high rigidity is located in the vicinity of the rear side of the second expansion / deployment portion 48, it functions as a second pressure receiving portion. By exhibiting this function, the front end of the side wall portion 23 receives a gas pressure through the second inflating and expanding portion 48 that expands, and generates a reaction force toward the front. Therefore, the same effect as in the above embodiment can be obtained without separately providing the first pressure receiving portion and the second pressure receiving portion.

  -You may omit the 2nd expansion | deployment deployment part 48 in the airbag 44. FIG. In this case, the airbag 44 is configured only by the first inflating and deploying portion 47. Accordingly, the second pressure receiving unit is not necessary. Also in this case, the occupant P is pushed by the side support portion 15 and moved to the inside of the vehicle. Therefore, it is possible to suppress the interference between the entering body side portion 13 and the occupant P, and to soften the impact caused by the interference.

-You may incorporate in the seat back 12 in the state which the 1st expansion | deployment expansion | deployment part 47 was folded. Further, the second inflating and deploying portion 48 may be incorporated in the seat back 12 in a state where it is not folded.
-This invention is applicable also to the airbag apparatus which protects the site | part different from the said embodiment about the passenger | crew P. FIG.

The perspective view which shows the state which looked at the seat back of the vehicle seat to which an airbag apparatus is applied from diagonally forward in one Embodiment which actualized this invention. The schematic plan view explaining the positional relationship of the seat back and body side part in a vehicle. The partial plane sectional view which shows internal structures, such as the side part of the vehicle outer side in a seat back. FIG. 4 is a partial plan sectional view showing a side frame portion and an airbag module in FIG. 3. FIG. 4 is a partial plan sectional view showing a boundary portion and its vicinity in FIG. 3. The partial plane sectional view which shows the state of the expansion | deployment initial stage of an airbag about the vehicle outer side part in a seat back. FIG. 7 is a partial plan cross-sectional view showing a state in which the seat back is further broken at the portion to be broken from the state of FIG. FIG. 3 is a schematic plan view for explaining the positional relationship between the seat back and the body side part when an impact is applied to the vehicle from the side, corresponding to FIG. 2. The fragmentary sectional view which shows the attachment aspect of an airbag module in another embodiment which applied the airbag apparatus to the vehicle seat which has a side frame part of the shape different from the said embodiment. The partial plane sectional view which shows the attachment aspect of an airbag module in another embodiment similarly. The partial plane sectional view which shows the attachment aspect of an airbag module in another embodiment similarly. In another embodiment which attached the airbag module directly to the side frame part, the partial plane sectional view which shows the attachment aspect.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Vehicle seat, 12 ... Seat back, 14, 15 ... Side support part, 16 ... Side part, 18 ... Air bag module, 19 ... Base part, 22 ... Side frame part, 41 ... Side plate part (1st pressure receiving part) , 42 ... front plate part (second pressure receiving part), 43 ... inflator (gas generation source), 44 ... airbag, 47 ... first inflated and deployed part, 48 ... second inflated and deployed part, F1, F2 ... reaction force.

Claims (1)

  1. An airbag module comprising a gas generation source that generates gas in response to an impact from the side of the vehicle and an airbag that is inflated and deployed by the gas from the gas generation source is provided on the outside of the vehicle with respect to the seat back of the vehicle seat. An airbag device incorporated in a side part,
    A bracket comprising a side plate portion extending in the front-rear direction and a front plate portion extending from the front end of the same side plate portion to the vehicle outer side is disposed in the side portion on the vehicle outer side of the seat back,
    The first inflating and deploying portion forming a part of the airbag is disposed in the vicinity of the vehicle interior side of the side plate portion in an unfolded state,
    The second inflating and deploying part forming a part of the airbag is arranged in the vicinity of the front of the front plate part in a folded state,
    Between the base portion of the side support portion on the vehicle outer side in the seat back and the airbag module in the seat back, a hard material is provided as a reinforcing member that regulates the inflation and deployment direction of the airbag. Without
    The side plate portion functions as a first pressure receiving portion that receives a gas pressure through the first inflating and expanding portion that expands and generates a reaction force toward the inside of the diagonally forward vehicle. Inflate and deploy toward the inside of the car and press the base part diagonally forward to the inside of the car,
    The front plate portion functions as a second pressure receiving portion that receives a gas pressure through the second inflating and expanding portion that expands and generates a reaction force toward the front, thereby causing the second inflating and expanding portion to face the front of the vehicle. An airbag apparatus characterized by being inflated and deployed.
JP2006146894A 2006-05-26 2006-05-26 Airbag device Active JP4760533B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006146894A JP4760533B2 (en) 2006-05-26 2006-05-26 Airbag device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006146894A JP4760533B2 (en) 2006-05-26 2006-05-26 Airbag device
US11/802,280 US7695004B2 (en) 2006-05-26 2007-05-22 Airbag apparatus
DE102007000291A DE102007000291A1 (en) 2006-05-26 2007-05-25 Airbag device for reducing impact from a vehicle's side has an airbag subassembly built into a vehicle seat's backrest with side supports

Publications (3)

Publication Number Publication Date
JP2007314075A5 JP2007314075A5 (en) 2007-12-06
JP2007314075A JP2007314075A (en) 2007-12-06
JP4760533B2 true JP4760533B2 (en) 2011-08-31

Family

ID=38622372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006146894A Active JP4760533B2 (en) 2006-05-26 2006-05-26 Airbag device

Country Status (3)

Country Link
US (1) US7695004B2 (en)
JP (1) JP4760533B2 (en)
DE (1) DE102007000291A1 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1890916A1 (en) * 2005-06-17 2008-02-27 Dalphi Metal Espana, S.A. Automotive vehicle seat with an airbag in the backrest thereof
JP5128229B2 (en) * 2007-10-04 2013-01-23 本田技研工業株式会社 Bracket for vehicle
US8523221B2 (en) 2008-07-10 2013-09-03 Faurecia Autositze Gmbh Airbag module and seat related thereto, and also manufacturing apparatus and assembly method therefor
JP5330758B2 (en) * 2008-08-11 2013-10-30 トヨタ自動車株式会社 Seat back structure
JP4877350B2 (en) * 2009-03-27 2012-02-15 豊田合成株式会社 Side airbag device
DE102009016666A1 (en) * 2009-03-31 2010-10-07 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Vehicle seat
DE102009016888A1 (en) * 2009-04-08 2010-10-14 GM Global Technology Operations, Inc., Detroit Side protection airbag arrangement for vehicle, has vehicle seat, which has seat frame, and airbag module with airbag
WO2010131322A1 (en) * 2009-05-11 2010-11-18 トヨタ自動車株式会社 Vehicle seat
JP5471026B2 (en) * 2009-05-14 2014-04-16 トヨタ紡織株式会社 Vehicle seat with side airbag device
US20100295282A1 (en) * 2009-05-21 2010-11-25 Hyundai Motor Company Seat with side airbag for vehicles
JP5476968B2 (en) * 2009-12-11 2014-04-23 トヨタ紡織株式会社 Vehicle seat
JP5669567B2 (en) * 2010-12-24 2015-02-12 テイ・エス テック株式会社 Vehicle seat
CN106427710B (en) 2010-12-24 2019-03-15 提爱思科技股份有限公司 Vehicle seat
KR101283698B1 (en) * 2011-03-29 2013-07-05 기아자동차주식회사 Side air-bag for a vehicle
US8353526B2 (en) * 2011-04-01 2013-01-15 Lear Corporation Air bag assembly with air bag guide secured by multiple fasteners
EP2567870B1 (en) * 2011-09-09 2015-03-25 Autoliv Development AB Vehicle seat with an airbag unit
CN104507760B (en) * 2012-07-25 2018-01-12 丰田自动车株式会社 The expansion direction limiting structure of side airbag
JP5942772B2 (en) * 2012-10-18 2016-06-29 トヨタ自動車株式会社 Vehicle seat with side airbag device
CN107719292B (en) 2012-12-28 2020-04-17 提爱思科技股份有限公司 Airbag module equipped seat and method for assembling same
JP6139956B2 (en) * 2013-04-18 2017-05-31 テイ・エス テック株式会社 Vehicle seat
JP6098409B2 (en) * 2013-07-19 2017-03-22 豊田合成株式会社 Side airbag device
KR20160058485A (en) * 2014-11-17 2016-05-25 현대모비스 주식회사 Installation structure of side airbag
JP5932007B2 (en) * 2014-12-16 2016-06-08 テイ・エス テック株式会社 Vehicle seat
KR102083142B1 (en) * 2016-09-05 2020-03-02 현대모비스 주식회사 Curtain airbag apparatus
JP6610493B2 (en) * 2016-10-03 2019-11-27 トヨタ自動車株式会社 Vehicle seat with side airbag device
JP6658585B2 (en) * 2017-02-03 2020-03-04 トヨタ自動車株式会社 Vehicle seats equipped with side airbag devices
JP2019018736A (en) * 2017-07-18 2019-02-07 トヨタ自動車株式会社 Vehicle seat equipped with side airbag device
DE102017213855A1 (en) 2017-08-09 2019-02-14 Volkswagen Aktiengesellschaft Safety device for a vehicle seat of a motor vehicle with an airbag

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3712081B2 (en) * 1996-01-31 2005-11-02 マツダ株式会社 Vehicle airbag device
JP3358450B2 (en) * 1996-07-09 2002-12-16 三菱自動車工業株式会社 Car seats
JP3642893B2 (en) 1996-09-06 2005-04-27 株式会社タチエス Seat pad structure for seat with built-in side airbag
JP3649820B2 (en) 1996-09-06 2005-05-18 株式会社タチエス Trim cover structure for seat with built-in side airbag.
JPH1134786A (en) * 1997-07-17 1999-02-09 Toyoda Gosei Co Ltd Air bag device for side collision
US6450528B1 (en) * 1998-10-01 2002-09-17 Toyota Jidosha Kabushiki Kaisha Vehicle seat housing an airbag device
US6213498B1 (en) * 1999-03-10 2001-04-10 Toyota Technical Center Usa, Inc. Seat back air bag deployment system
US6352304B1 (en) * 1999-08-19 2002-03-05 Johnson Controls Technology Company Device for indicating an airbag module position
JP2004017927A (en) * 2002-06-20 2004-01-22 Shigeru Co Ltd Seat back for vehicle
US7134685B2 (en) * 2004-01-16 2006-11-14 Lear Corporation Air bag deployment arrangement
JP4691727B2 (en) * 2006-03-29 2011-06-01 ダイハツ工業株式会社 Seat with built-in side airbag

Also Published As

Publication number Publication date
US20070273129A1 (en) 2007-11-29
US7695004B2 (en) 2010-04-13
JP2007314075A (en) 2007-12-06
DE102007000291A1 (en) 2007-11-29

Similar Documents

Publication Publication Date Title
US10414372B2 (en) Vehicle seat airbag system and vehicle seat
JP6428929B2 (en) Crew protection device
JP6179469B2 (en) Far side airbag device
EP2957458B1 (en) Vehicle seat
JP6222008B2 (en) Side airbag device
JP5831634B2 (en) Side airbag device for vehicle
JP5850156B2 (en) Side airbag deployment direction restriction structure
JP6327110B2 (en) Side airbag device
US7549671B2 (en) Knee-protecting airbag apparatus
US8720940B2 (en) Side airbag apparatus
US7669888B2 (en) Side airbag apparatus
KR101080728B1 (en) Side airbag apparatus for vehicles
JP5149383B2 (en) Airbag device
JP6565771B2 (en) Crew protection device
DE102014224874A1 (en) Vehicle side airbag device
JP5595154B2 (en) Curtain airbag
JP4727849B2 (en) Protection device for vehicle occupant and occupant protection method
JP5637192B2 (en) Curtain airbag device for vehicle
US8833852B2 (en) Vehicle seat assembly
JP5999061B2 (en) Seat-mounted airbag device and vehicle seat
JP5761231B2 (en) Side airbag device for vehicle
JP5651788B2 (en) Seat bolster room
JP5437272B2 (en) Side airbag device
JP6183342B2 (en) Vehicle occupant protection device
JP5083024B2 (en) Airbag device

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080627

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080821

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20101117

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101130

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110128

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110510

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110523

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140617

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4760533

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150